<!DOCTYPE html>
<html lang="en">
<head>
<title>404 Page Not Found</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body style="background-color: #ccc;">
    <div style="
         padding: 10px;
         width: 500px;
         height: 350px;
         position: absolute;
         left: 50%;
         top: 50%;
         margin: -180px 0 0 -260px;
         background: #ccc;
         background: rgba(0,0,0,.5)
         ">
        <img src="http://tienlac.gosu.vn/layout/404.jpg" />
    </div>
</body>
</html>